Pope Francis Installation Mass LIVE Stream: Watch Pope Francis' Investiture Online

The Vatican will host Tuesday delegations from over 130 countries, and multiple religious denominations, who will attend Pope Francis I's Investiture — or Installation Mass. Cardinal Jorge Begoglio, from Argentina, was elected by the Conclave on March 13 beating big favorites such as Cardinals Angelo Scola from Italy and even Cardinal Timothy Dolan from New York. Vice President Joe Biden, a Catholic, will lead the American delegation. President Barack Obama had invited Speaker of the House John Boehner (R-Ohio), who is also a Catholic, but Boehner declined citing important business in Washington.